Abstract: The present disclosure provides a plug-in mechanism of an LED display device and the LED display device. The plug-in mechanism of the LED display device comprises a first plug-in assembly and a second plug-in assembly which are matched with each other, wherein the first plug-in assembly comprises a first seat body, a first power supply plug-in part, a first signal plug-in part, a first driving component, a second driving component and a function switching component; the first driving component is movably arranged on the first seat body and drives the first power supply plug-in part to move; the second driving component is movably arranged on the first seat body and drives the first signal plug-in part to move; the second plug-in assembly comprises a second seat body, a second power supply plug-in part, a second signal plug-in part and a pushing part; and when the function switching component is located at a first working position, the function switching component can drive the driving part to move.

Abstract: The disclosure provides an edge locking apparatus of a Light Emitting Diode (LED) display screen and the LED display screen. The edge locking apparatus of the LED display screen includes an edge locking structure. The edge locking structure includes a lock seat, a lock cylinder, a rotating piece, a first driving piece and a second driving piece. The lock cylinder is movably arranged in the lock seat, and the lock cylinder includes a cylinder body part, and a lock pin, a first rotating part, an avoiding part and a second rotating part which are sequentially arranged on the cylinder body part at intervals. The cylinder body part is provided with a retracting position enabling the lock pin to retract into the lock seat, an inserting position enabling the lock pin to extend out of the lock seat and a locking position enabling the lock pin to rotate by a preset angle relative to the inserting position.

Abstract: The invention provides a Light-Emitting Diode (LED) display screen, including: fixing assemblies and a display assembly. The fixing assemblies are provided at an upper side and lower side of the display assembly so as to fix the display assembly. The display assembly includes: an LED display light bar and a connecting structure connected with the LED display light bar. The display assembly further includes an angle adjustment structure provided between the connecting structure and the LED display light bar. The angle adjustment structure can adjust a mounting angle of the LED display light bar. The technical solution of the invention effectively solves the problem in the traditional art that an angle of an LED display light bar cannot be adjusted.

Abstract: The invention provides a Light-Emitting Diode (LED) display screen, including: fixing assemblies and a display assembly. The fixing assemblies are provided at an upper side and lower side of the display assembly so as to fix the display assembly. The display assembly includes: an LED display light bar and a connecting structure connected with the LED display light bar. The display assembly further includes an angle adjustment structure provided between the connecting structure and the LED display light bar. The angle adjustment structure can adjust a mounting angle of the LED display light bar. The technical solution of the invention effectively solves the problem in the traditional art that an angle of an LED display light bar cannot be adjusted.